1. The problem statement, all variables and given/known data A man pushes a box full of toys that has a mass of 12kg across a floor with a force of 60 N. The box of toys and the floor have a kinetic coefficient of friction of 0.5. What is the acceleration of the box? 2. Relevant equations F=ma 3. The attempt at a solution Here's what I have so far. f[itex]\mu[/itex]k=12*9.8*0.5=58.8. So, since the man is pushing with 60 N of force, and the friction force is pushing back with 58.8 N, he is pushing the box with a net force of .2 N. I think, but I"m not sure, that I could just use this 0.2 as the F in F=ma, then solve for a, using 12 as m, and 0.2 as F. I'm not quite sure if this is correct though.